3 years ago

The nucleus of an atom contains what subtomatic particle

Chemistry

1 answer:

Luden [163]3 years ago

6 0

There the protons and the nuetrons

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The pressure of a sample of argon gas was increased from 3.14 atm to 7.98 at a constant temperature. If the final volume of argo

noname [10]

Answer:

Explanation:

The initial volume can be found by using the formula for Boyle's law which is

$P_1V_1 = P_2V_2$

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume.

Since we're finding the initial volume

$V_1 = \frac{P_2V_2}{P_1} \\$

We have

$V_1 = \frac{7.98 \times 14.2}{3.14} = \frac{113.316}{3.14} \\ = 36.0878...$

We have the final answer as

Hope this helps you

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2 years ago

A certain isotope has 53 protons 78 neutrons and 53 electrons. What is its atomic number? What is the mass number of this atom?

statuscvo [17]

Answer:

53 protons
131g
Iodine
Halogens

Explanation:

atomic no. = no. of protons

= 53 proton

mass = no. of protons + no. of

neutrons

= 53 + 78

= 131

5 0

2 years ago

Which total mass of iron is necessary to produce 1.00 mole of copper?

Harman [31]

1 mole Fe produces 1 mole Cu
<span> molar mass of Fe is 55.8 g / mole

answer: </span><span>55.8g</span>

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2 years ago

O que é etnocentrismo

Shtirlitz [24]

Answer:

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2 years ago

How many moles of K2SO4 are in 15.0 grams of K2SO4

uysha [10]

Molar mass K₂SO₄ = 174.259 g/mol

$n = \frac{m}{M}$

$n = \frac{15.0 g}{174.259g/mol}$

$n = 0.0860$ moles

hope this helps!

5 0

2 years ago

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